18705417

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{647}}^1$

素因数の和:1092

約数の個数: 16

約数和(自身を含む): 26127360

約数和(自身を除く): 7421943

約数列:

[1, 3, 23, 69, 419, 647, 1257, 1941, 9637, 14881, 28911, 44643, 271093, 813279, 6235139, 18705417]

約数ペア:

[(1, 18705417), (3, 6235139), (23, 813279), (69, 271093), (419, 44643), (647, 28911), (1257, 14881), (1941, 9637)]